The Search and Study of Low-mass Scalar Mesons in the Reaction $np --> npπ^+π^-$ at Pn=3.83 Gev/c

Details The Search and Study of Low-mass Scalar Mesons in the Reaction $np --> npπ^+π^-$ at Pn=3.83 Gev/c The Search and Study of Low-mass Scalar Mesons in the Reaction $np --> npπ^+π^-$ at Pn=3.83 Gev/c

2010-11-13

arxiv.org/abs/1011.3124v2

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

This work is devoted to search and study scalar $\sigma_0 0^+[0^++]$ - mesons in the system of $\pi^+\pi^-$ from the reaction $np -> np\pi^+\pi^-$ at the impulse of the quasimonochromatic neutrons c from the data obtained in an exposure of the 1m H2 bubble chamber of LHE (JINR)The resonance with and has been found out in effective mass distribution. Value of a statistical deviation of this peculiarity from a background is more than four. Spin of the resonance has been estimated, which, with high probability, is equal 0. The other quantum numbers of the resonance have been estimated.

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